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| | <StructureSection load='3c23' size='340' side='right'caption='[[3c23]], [[Resolution|resolution]] 2.50Å' scene=''> | | <StructureSection load='3c23' size='340' side='right'caption='[[3c23]], [[Resolution|resolution]] 2.50Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[3c23]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Atcc_43589 Atcc 43589]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3C23 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3C23 FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[3c23]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Thermotoga_maritima Thermotoga maritima]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3C23 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3C23 FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=3AT:3-DEOXYADENOSINE-5-TRIPHOSPHATE'>3AT</scene></td></tr> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.5Å</td></tr> |
| - | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[3c1y|3c1y]], [[3c1z|3c1z]], [[3c21|3c21]]</div></td></tr> | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=3AT:3-DEOXYADENOSINE-5-TRIPHOSPHATE'>3AT</scene></td></tr> |
| | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=3c23 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3c23 OCA], [https://pdbe.org/3c23 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3c23 RCSB], [https://www.ebi.ac.uk/pdbsum/3c23 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3c23 ProSAT]</span></td></tr> | | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=3c23 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3c23 OCA], [https://pdbe.org/3c23 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3c23 RCSB], [https://www.ebi.ac.uk/pdbsum/3c23 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3c23 ProSAT]</span></td></tr> |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[https://www.uniprot.org/uniprot/DISA_THEMA DISA_THEMA]] Participates in a DNA-damage check-point. DisA forms globular foci that rapidly scan along the chromosomes searching for lesions (By similarity).<ref>PMID:18439896</ref> Has also diadenylate cyclase activity, catalyzing the condensation of 2 ATP molecules into cyclic di-AMP (c-di-AMP). c-di-AMP likely acts as a signaling molecule that may couple DNA integrity with a cellular process. Does not convert GTP to c-di-GMP.<ref>PMID:18439896</ref>
| + | [https://www.uniprot.org/uniprot/DISA_THEMA DISA_THEMA] Participates in a DNA-damage check-point. DisA forms globular foci that rapidly scan along the chromosomes searching for lesions (By similarity).<ref>PMID:18439896</ref> Has also diadenylate cyclase activity, catalyzing the condensation of 2 ATP molecules into cyclic di-AMP (c-di-AMP). c-di-AMP likely acts as a signaling molecule that may couple DNA integrity with a cellular process. Does not convert GTP to c-di-GMP.<ref>PMID:18439896</ref> |
| | == Evolutionary Conservation == | | == Evolutionary Conservation == |
| | [[Image:Consurf_key_small.gif|200px|right]] | | [[Image:Consurf_key_small.gif|200px|right]] |
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| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Atcc 43589]] | |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Buttner, K]] | + | [[Category: Thermotoga maritima]] |
| - | [[Category: Hartung, S]] | + | [[Category: Buttner K]] |
| - | [[Category: Hopfner, K P]]
| + | [[Category: Hartung S]] |
| - | [[Category: Witte, G]] | + | [[Category: Hopfner KP]] |
| - | [[Category: Dna binding protein]] | + | [[Category: Witte G]] |
| - | [[Category: Dna damage]] | + | |
| - | [[Category: Dna repair]]
| + | |
| - | [[Category: Dna-binding]]
| + | |
| Structural highlights
Function
DISA_THEMA Participates in a DNA-damage check-point. DisA forms globular foci that rapidly scan along the chromosomes searching for lesions (By similarity).[1] Has also diadenylate cyclase activity, catalyzing the condensation of 2 ATP molecules into cyclic di-AMP (c-di-AMP). c-di-AMP likely acts as a signaling molecule that may couple DNA integrity with a cellular process. Does not convert GTP to c-di-GMP.[2]
Evolutionary Conservation
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.
Publication Abstract from PubMed
To reveal mechanisms of DNA damage checkpoint initiation, we structurally and biochemically analyzed DisA, a protein that controls a Bacillus subtilis sporulation checkpoint in response to DNA double-strand breaks. We find that DisA forms a large octamer that consists of an array of an uncharacterized type of nucleotide-binding domain along with two DNA-binding regions related to the Holliday junction recognition protein RuvA. Remarkably, the nucleotide-binding domains possess diadenylate cyclase activity. The resulting cyclic diadenosine phosphate, c-di-AMP, is reminiscent but distinct from c-di-GMP, an emerging prokaryotic regulator of complex cellular processes. Diadenylate cyclase activity is unaffected by linear DNA or DNA ends but strongly suppressed by branched nucleic acids such as Holliday junctions. Our data indicate that DisA signals DNA structures that interfere with chromosome segregation via c-di-AMP. Identification of the diadenylate cyclase domain in other eubacterial and archaeal proteins implies a more general role for c-di-AMP in prokaryotes.
Structural biochemistry of a bacterial checkpoint protein reveals diadenylate cyclase activity regulated by DNA recombination intermediates.,Witte G, Hartung S, Buttner K, Hopfner KP Mol Cell. 2008 Apr 25;30(2):167-78. PMID:18439896[3]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Witte G, Hartung S, Buttner K, Hopfner KP. Structural biochemistry of a bacterial checkpoint protein reveals diadenylate cyclase activity regulated by DNA recombination intermediates. Mol Cell. 2008 Apr 25;30(2):167-78. PMID:18439896 doi:10.1016/j.molcel.2008.02.020
- ↑ Witte G, Hartung S, Buttner K, Hopfner KP. Structural biochemistry of a bacterial checkpoint protein reveals diadenylate cyclase activity regulated by DNA recombination intermediates. Mol Cell. 2008 Apr 25;30(2):167-78. PMID:18439896 doi:10.1016/j.molcel.2008.02.020
- ↑ Witte G, Hartung S, Buttner K, Hopfner KP. Structural biochemistry of a bacterial checkpoint protein reveals diadenylate cyclase activity regulated by DNA recombination intermediates. Mol Cell. 2008 Apr 25;30(2):167-78. PMID:18439896 doi:10.1016/j.molcel.2008.02.020
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